(19)

(11)

EP 1 070 416 A1

(12)

(43) Date of publication: 24.01.2001 Bulletin 2001/04 (21) Application number: 99915873.6 (22) Date of filing: 07.04.1999

(51) International Patent Classification (IPC)7: H04M 3/36, H04M 3/56, H04M 9/08 (86) International application number: PCT/GB9901/061 (87) International publication number: WO 9953/673 (21.10.1999 Gazette 1999/42)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 08.04.1998 EP 98302763 08.04.1998 GB 9807745 (71) Applicant: BRITISH TELECOMMUNICATIONS public limited company London EC1A 7AJ (GB)	(72) Inventor: HUGHES, Peter, James Woodbridge,Suffolk IP12 1QR (GB) (74) Representative: Lidbetter, Timothy Guy Edwin et al BT Group Legal Services,Intellectual Property Department,8th Floor, Holborn Centre,120 Holborn London EC1N 2TE London EC1N 2TE (GB)